It seems that a many intro statistics students struggle with the “language” of stats. I am working on a micro-course on that topic and I ran across this article: Statistics for people in a hurry. It is well worth the read the 8-minute read.
The process of statistics starts when we identify what group we want to study or learn something about. We call this group the population. Alt-text: Pictorial representation of a population Note that the word “population” here (and in the entire course) is not just used to refer to people; it is used in the broader …
Although we often think of paired samples as being the same person (thing) in a “before” and “after” treatment setting, there are some other important types of paired samples. One kind are “natural” pairings, such as spouses, siblings, and especially twins. This type of pairing is often used in medical observational research when it is …